Short-wave CW UV lasers must rely on resonators to achieve continuous and stable output of UV laser pointer. This has higher requirements for resonant cavity design, mode matching, light-to-light conversion efficiency, and optical film damage resistance, and it is technically difficult. In order to overcome the shortcomings of the prior art, a laser mode with a single frequency doubling to achieve short-wave ultraviolet output is provided.
The laser diode that can convert the fundamental frequency light into the frequency doubled light output through the second-order nonlinear process, and then realize the real high-efficiency output, directly pumps the intracavity frequency doubled short-wave ultraviolet all-solid-state laser. The technical solution adopted is as follows: by optimizing the parameters of the optical resonant cavity, cavity length and mirror curvature, design an optical structure that meets the design input requirements;
By optimizing the design of the optical film, the ion sputtering deposition method is used to produce high-quality optical films. Combining with the actual debugging results, continuously improve the coating quality of optical crystals and lenses, reduce intracavity loss, improve the output efficiency of the laser, and provide conditions for stable resonance of the green laser pointer wavelength;
Realize the best output by optimizing the laser medium and nonlinear crystal material, concentration, length and other parameters;
By optimizing the mechanical structure design, it is more convenient to fix the laser components; optimizing the modular structure design without installation and adjustment, so that the industrial-grade reliability is continuously increased; reducing the volume of the light source module, strengthening the thermal damage resistance of continuous work; improving the optical machine structure Anti-vibration ability and device service life to ensure the quality of laser products;
The electrical laser power supply and temperature control circuit adopt digital technology to realize the design function of small size, low noise and anti-interference. Through the photoelectric feedback technology, the adaptive adjustment of the laser output power is realized, and the long-term stability and reliability of the laser are improved.